Acetylene-torch.



V. L. CHAPT.

ACETYLENE TGRCH.

APPLICATION FILED APEL 1F 1918 2 SHEETS-SHED 2.

magnum j @glas 2v 40 preheating attac ment,iand, vided at its rear'end With-an UNITED sTATEs .PATENT i oFFioE.

V:.-ours einer, or :Farmsum-NEW amasar.

' acnrirLENii-Toncn.

1,278,303. spwmcffi'mf Letta# Paflt- 4Patented Sept..10.,19l`8- Application led April 17, 1918. Serial No. 229,152. 'l'o au 'ev/wm zt may concern.' The screw-threaded extension 14projecte Be itv known that I, LOUIS CHAPT, a citizen beyond the bushing 10 and engages Within al of the Republic of France, residingat Paterchamber 16 ofa valve casing 17, to be con-` son, in the vcounty of Passaic and State of nected with a source of oxygen or air. The 5 New Jersey, have invented certain new and valve casing 17 ,is provided with a chamber 60 useful Improvements in Acetylene-Torches, 18se arated fromthe'chamber 16 by means of whichthefollowing is a specification. of a ridge 19, havinv an opening 2,0, covy invention 4relates to improvements 1nl ered Aand uncoveredy a needle valve 21, torches for cutting, welding, brazing, prehaving screw-threaded engagement within a 10 heating, and the like, and adapted to use bearing 2 2. 65 vvarious forms of gaseous fuel, such as acety# The tubular coupling 13 is-v rovided at its leiie and oxygen, or ordinary gas and air. forward end jwith, a reduce extension or An important object of the invention is to nozzle 23, exteriorl screw-threaded and provide a torch of the above mentioned projecting into atu ular` mixing chamber 15 character which is readily convertible, for 24, and'. having screw-threaded engagement 70 any of said purposes, of simplified construe` therein, as shown. At its forward end, the tion, and reliafble and safe in operation. tubular mixingchamber 24 is provided with Other objects and advantages of the inan enlarged head 25, having a ange 26 vention will be apparent during the course contacting'with an inner tubular casing 27 20 of the following description. which. engages .Within 'an annular flange 28, 76

` In the accon'ipaiiy'ng drawings forming a formed'upon the bushing 10, as shown. part of this specification and in whichl like he numeral 29 designates a valve, such as` numerals are employed to designate like I a `needle valve having connect-ion with a parts' throughout the same, source of acetylene gas, or other gaseous 26 Figure 1 is a central vertical longitudinal fuel, and connected with an elbow 30, having 80 i sectional view through dz ipparatus embodya reduced screw-threaded portion 31,v enin'g`my invention, er, Y gaging Within Van opening formed in the Yig. 2 isa transverse sectional view taken ushing 10, and discharging interiorly of on line 2- -2 of Fig. 1, the Harige 28 and into the inner tubular oas 80 Fig. 3 is asimilar view taken on line 3-3 ing 27, as shown. B5'

of Fig. l, Formed Vupon the tubularrcoupling 13 is Fig. 4 is perspective view of aii agitator an agitator Harige 32, fitting snuglyv within element, the inner tubular Casin 27, and provided Fig. 5 isa similar view of a eoactiiig agiupon its periphery with inclined grooves 35 tating element, C adapted to impart a rotar movement torthL Fig. 6A is a' longitudinal. section through gases passing therethroug The gasentes the 4head of the torch, showing the attacha space 34, exteriorly of a tubular wire gauze: Aments for welding, Velement 35, as shown. i i ig. 7 is a lon itudinal section through a The tubular mixing chamber 243s pro- 11g. 8 is asimilar view through a Buiisen v36, having inclined or spiralports '37 formed,

burner attachment. therein, and ldischarging into a space 38, ex- Inthe drawings wheieiiifor the purpose teriorly of a tubularwire Ygauzeelement 39.

4 `of illustration is shown' a preferred embodi- The function of the tubular wire gauze ele- '.-',`-.g. 'ment of myv invention, the numeral 1 des ments V35 and 39 is to prevent back firing of 160 ignates a bushing, an a second bushing 11 the apparatus, as is` obvious. Y Thev tubular n vis arranged forwardly o f .and spaced from mixing chamber 24 is provided lforwardly of -the I iifst bushing, these' two bushings being and nn i' the Harige 36 withtransve'rse openheld lWithin the ends of a Ytube. 12, by any ings 4U, whereby the acetylene gasor the'like suitable means. passes' into the tubular mixing' chamber. 105

' Thenumeral 13 designates aninterior con; he oxygen or .the like is supplied into this pling, provided. at itsgrear end` with a rechamber throu' h thenozzle l23. duced extension 14, entteiiorly.screw-thread- Connected with the head 25 isa gas pi e ed, as shown at 15, ,toengage within the 41, extending through an opening 42 in'tiie 5 screw-threaded opening of the bushing V"bushing 11. The pipe 41 has screw-thread- ND agita-ting Harige 9.5 l

ed engagement within an opening 43, formedv in' a, head 44, and communicating with a port 45. The head 44 has a main longitudinal bore 46'. The numeral 47 designates an oxygen pipe, the rear end of which leads into the chamber' 18, and this pipe has a cut-off valve 48 connected therein, to vcontrol the volume 'of oxy en passing therethrough. The pipe 47 lea s into the upper end of the head 44 and discharges into the main bore 46 and a .bushing 49 is screw-threaded into the'upper end ofthe head 44, and surrounds the end" portion of the pipe 47, and engages suitable packing 50, to prevent leakage.

The numeral 51designates a tubular oxygen ejector, provided at its upper end with -an enlarged head 52, contacting with, a Ashoulder 53..

The head 52 is slightly smaller in diameter than the bore 46 and thereby permits of the. passage of the mix- "ture of acetylene and oxygen into and through the bore 46, the head 52 forming a gas .tight contact with the shoulder 53, whereby the oxygen passes entirely longitudinally through the tnbiilar ejector 51.

The numeral 54 designates a tubular tip provided at its upper end with a reduced exs tension exteriorly screw-threaded to en gage within asereW-threaded recess 56. The v bore of the tubular extension 55 and the. tip' 54 has a larger diameter than the tubular ejector 51,"to permit of the passage of'the acetylene gas discharging through ports 51', as shown. At its lower end, the tubular ejector 51 has a reduced tubular Aextension 57, 4(attending through a contracted bore 58, in the tip 54, and the extension 57 having a slightly smaller diameter than the bore 58. It is thus apparent that the oxygen Will discharge through the tubular extension 57, and while passing from the free end thereof, will be surrounded or enveloped in a tubular jacket of a. mixture of oxygen and acetylene gas, emerging from the bore 58. The mixvture of oxygen and acetylene gas is ignited at the end of the tip 54, as is obvious, for

. which is lpentieularly Well adapted for use cuttin purposes. ig. 6, I have shown an attachment in Welding, and this attachment embodies a tip 59 having a longitudinal bore 60, and

providedat its upper end with a screw-' 'threadedopening 61, receiving a reduced screivthreaded' extension .62, of a coupling 63. Thist coupling 63 .is screw-threaded Within the screw-threadedfbore of the head 44, and .is held against accidental rotation by .alock nut 64, ae shown. The cou pling {i3-is provided at its .upperend with a closed head 65, the upper end of which is rounded and adapted to be'slightly spaced from tlievshoulder 53, to permit. loli' the passage of the oxygen therebetween. l The coupling 63 is provided with a plurality of apertures 67, disposed near the lower end of the other forms.

the free end of the tip 59 andis ignited, as

is obvious.

15 In Fig. 7, I have. shown a different form Aot tip, for use in preheating, the same e1nbodying a tubular' guard 68, having a screwthreaded extension 69 to engage Within the screw-threaded opening 55,`the coupling 63 being ot" course removed.y The tubular extension 69 receives a. tip 70, the discharge end 7l of Which-is arranged Within the` tubular guard 68. In the use of this form of'attachment, .the mixed oxygen4 and acetylene gas pass through the tip 70 and dischargel'into the tubular guard 68, and are ignited in the tubular guard or at the dis charge end thereof. Y

In Fig. 8, is shown an attachment of the Bunsen type embodying a` tubular portion 72,' provided 'at its rear end with an extension 73, exteriorly screw-threaded to engage within the screw-threaded bore 55, the other attachments being. removed. Within the tubular extension 73 is atip 74, having a' discharge end 75," arrangedr Within -the tubular portion 7 2. Air supply openings 76 lead into the tubular portion 72, at or near In the operation of the -irst form of apparatus, by the manipulation of theneedle valve 29, a proper amount of acetylene gas. is supplied into the rear end of the tubular casing 27, and this gas passes through the grooves 33 and into the space 34 exteriorly of the wire gauze 35. The gas then passes through this wire gauze into the inner portion of the space 34 and then through thle ports 37 exteriorly of the Wire gauze 110 The gas then passes inwardly through the Wire gauze 38 and through the apertures-40, into the tubular mixing chamber 24. When" in the tubular mixing chamber, the acct;

ylene gas is brought into Contact with the A the extension. 57 thereof, intdthe-tubular 125` mass of gas passing from the tip 54` In view of the statement of the ollleration of this form of the invention, it is thought to be unnecessary to explain the operation It is to be understood that the forms' of iny invention herewith shown and described are to he taken as preferred examples of the saine and that various changes in the shape, size, and arrange-tuent of parts may be resorted to 'without departing from the spirit of the invention or the scope of the subjoined claims.

HavingV thus described my invention, what l claim is l. Apparatus of the Character deseribed`r Comprising a tubular easing having its opposite ends closed., a tubular coupling` arranged Within the tubular easing and provided at its forward end. with a discharge nozzle and haring a radially extending flange to substantially Contact with the inner wall of the tubular easing, said flange having;l inclined openings formed thereiin means for supplyingoxygen into the tubular eoupling, means for supplying acetylene gus into the tubular easing' exterior-ly oi the tubular coupling and .rearwardly of the tial ge, a tubular strainer element arranged within the tubular easing and disposed in ivurdly of said inclined `ipeniiirgns, a tuhular mixing chamber receiving the nozzle in one ond thereof aintirovided nearv its rear end with a radiallyeitendingiiange to subst-autially -eontaet with the inner wall of the tubular easiue, said last named flange hav ing inclined ports formed therein and the tubular n'iivinor Chamber having transverse ports arranged near the uozyle7 a tubular strainer element surrounding a portion of the tubular mixing chamber and arranged invardly of the outlet ends of the inclined ports. a pipe .leading into the forward end of the tulndar mirinor chemin-,ig and a burner connected with the pipe. i

2. Apparatus of the character described, comprising a tubular casing, a tubular oon piling arranged within the tubular easing and prmfided at is forward end with a serew-tlneaded portion, an oxygen supply valve having a plurality of chambers with one elnimber receiving the rear end of the? tubular eoupling, an oxygen pipe leading .into the other chamber of the valve, an acetylene gas valve discharging into the tubular easing, a .tubular mixing ,chamber having screw-threaded engagement with thev forward serein-threaded portion of the tubular coupling and'arranged Within the tubular easing and having transverse ports formed therein, a pipe connected with the v,forward end of the tubular mixing chamber, and a hurner connected with the oxygen and gas pipes.

In apparatus of the character deseriliied, a tubular easing, a tubular element arranged `within the tubular casing in sul)k stantially concentricy spaced relation and having transverse ports formed ingthe forward portion thereof, gauze means arranvged within the tubular easing the tubular element, means for supply, garetylene `iras into the tubular acetylene gas passes through the transverse ports, means afmeting with the gauze means to cause said acetylene gas to pass transversely through said gauze means prior to its passage through the transverse ports, means to supply oxygen into the tubular element, a conduit eonnerted with the tubular element, and a burner eonnepted with the eomluit.

et. In apparatus of the eharzmter deseribeih a head provided with, a main longitudinal bore and ltmgtudinal openin' formed through the upper end thereof an' leading into the bore, said head being: provided at the upper end of the bore with au internal annular Han said head being pro- `vided forwardly of t ie Hanne with a transverse port leadingr into the here; an oxygen suppy pipe leadinpr into the longitudinal opening; a bushing screw-threaded within the longitudinal opening and surrounding the end of the oxygen .supply pipe; packing ai? anged between. the bushing and said flange; a tubular oxygen ejector extendinginto the here of the head and provided with au enlarged head adapted to contant with the flange, said head having a smaller ox terior diameter than the diameter oi the here; a tubular tip surrounding the orw ard end of the tubular oxygen ejector and having" a reduced serew-threadecl portion pro` jeetingirrto the said bore, the reduced screw threadedportion having a bore of larger diameter than the oxygen ejector; and a gas supply openiig. l

In testimony whereof .I aiiix' my signature.

LOUIS CHAPT.

pipe leading y-iuto the transverse and surrouiulnig.;

casinggu'l exteriorly of the tubular element whereby the" 

